CN111172961A

CN111172961A - Portable measuring device with adjustable depth for geotechnical geological investigation

Info

Publication number: CN111172961A
Application number: CN201911397220.1A
Authority: CN
Inventors: 付垚; 胡文奎
Original assignee: JINAN INSTITUTE OF SURVEY & MAPPING
Current assignee: JINAN INSTITUTE OF SURVEY & MAPPING
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-05-19
Anticipated expiration: 2039-12-30
Also published as: CN111172961B

Abstract

The invention discloses a portable measuring device with adjustable depth for geotechnical geological investigation, which comprises a bottom plate, wherein a through hole is formed in the middle of the bottom plate, a drilling sampling device is arranged above the through hole and comprises a first rotating shaft, a drill bit is arranged below the first rotating shaft, a plurality of connecting drill rods are arranged between the drill bit and the first rotating shaft, first flanges are arranged at two ends of each connecting drill rod, the connecting drill rods are respectively connected with the drill bit and the first rotating shaft through second flanges, first spiral blades are arranged on the connecting drill rods, a cavity is formed in the connecting drill rods, and a rotating shaft is arranged in the cavity. Has the advantages that: the device simple structure, convenient operation uses, can once drill and take a sample to the ground of the different degree of depth, and the ground of the different degree of depth mixes when avoiding rising, great increase the security of use, increased the accuracy of sample, improve the accuracy of sample measurement.

Description

Portable measuring device with adjustable depth for geotechnical geological investigation

Technical Field

The invention relates to the field of design of a geotechnical geological survey measuring device, in particular to a portable depth-adjustable measuring device for geotechnical geological survey.

Background

The geotechnical engineering investigation mainly comprises the following steps: engineering geological survey and surveying, exploration, soil sample sampling, in-situ test, indoor test, on-site inspection and detection, and finally, according to the above means or all means, qualitative or quantitative analysis and evaluation are carried out on the site engineering geological conditions, and achievement report files required by meeting different stages are compiled.

Geological exploration is to survey and detect geology by various means and methods, determine a proper bearing stratum, determine a foundation type according to the foundation bearing capacity of the bearing stratum, calculate the investigation and research activities of basic parameters, generally dig pits, grooves, wells and holes on the ground for observation and detection, measure the distance between pit and groove positions, facilitate the manufacture of a geological structure model, and are difficult to measure by using tools such as a tape because the bottom surface is usually in a rugged state, the existing distance measuring mode is mainly measured by a theodolite and a distance meter, the measuring mode is accurate and can measure the direct distance between pit and groove and the horizontal distance of the pit and groove, however, in the existing geological exploration, a drilling machine basically comprises a diesel engine and a winch, the machine body is heavy and is hundreds of kilograms, most construction sites can not be mechanically carried, the drilling work site is purely manual, and great inconvenience is brought to the drilling work, simultaneously can not take a sample to the ground of the different degree of depth at the in-process of drilling and take back indoor test, the troublesome nature when having increased the use, so necessary solve above problem that exists to a portable measuring device of degree of depth adjustable for geotechnical geology reconnaissance.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

The invention aims to provide a portable depth-adjustable measuring device for geotechnical geological exploration, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a portable measuring device with adjustable depth for geotechnical geological exploration comprises a base plate, wherein a through hole is formed in the middle of the base plate, a drilling sampling device is arranged above the through hole and comprises a first rotating shaft, a drill bit is arranged below the first rotating shaft, a plurality of connecting drill rods are arranged between the drill bit and the first rotating shaft, first flanges are arranged at two ends of each connecting drill rod, the connecting drill rods are respectively connected with the drill bit and the first rotating shaft through second flanges, first spiral blades are arranged on the connecting drill rods, a cavity is formed in the connecting drill rods, a rotating shaft is arranged in the cavity, a first bearing sleeve is arranged in the middle of each rotating shaft, the first bearing sleeve is connected with the inner wall of the cavity through a supporting plate, a plurality of placing grooves are symmetrically formed in two sides of each connecting drill rod, and a collecting box is fixedly arranged in the placing grooves, a sampling port is arranged at one end of the collecting box, an opening and closing mechanism is arranged on the sampling port, a first worm is arranged in the collecting box, a second spiral blade is fixedly arranged at one end of the first worm, one end, far away from the second spiral blade, of the first worm sequentially penetrates through the collecting box and the placing groove and extends towards the inside of the cavity to be meshed with a first turbine, the first turbine is fixedly sleeved on the rotating shaft, a limiting and supporting device is arranged at one end, far away from the second spiral blade, of the first turbine and comprises a fixed plate, a groove is formed in the side edge of the fixed plate, a limiting rod is arranged in the groove and is in sliding connection with the groove, a sliding block is fixedly arranged at one end, far away from the groove, of the sliding block and is in sliding connection with a sliding rail, one end of the sliding rail is fixedly connected with the inner wall of the cavity, one end of the first rotating shaft, which is far away from the connecting drill rod, penetrates through the lifting plate, a second bearing sleeve is arranged at the penetrating position of the first rotating shaft and the lifting plate, a transmission device is arranged at one end of the first rotating shaft, the transmission device comprises a first motor, the output end of the first motor is provided with a first belt pulley, a second belt pulley is arranged on one side of the first belt pulley, the first belt pulley is connected with the second belt pulley through a belt, a second rotating shaft penetrates through the middle of the first rotating shaft and is connected with the rotating shaft through a connecting device, the second pivot is kept away from connecting device's one end is connected with the output of second motor, the both sides of lifter plate are equipped with elevating gear, one side of lifter plate is equipped with the theodolite, the below of theodolite is equipped with rotary device.

Further, connecting device includes first fixed block and second fixed block, first fixed block fixed with the second pivot with the one end of rotation axis, the second fixed block fixed with the rotation axis is kept away from the other end of first fixed block, the fixed a plurality of fixture blocks that are equipped with in edge of first fixed block, the spacing groove has been seted up to one side of second fixed block, the spacing groove with first fixed block phase-match, the edge of spacing groove is located the draw-in groove has been seted up on the second fixed block, the fixture block with the draw-in groove phase-match.

Furthermore, the lifting device comprises a hydraulic cylinder, a hydraulic telescopic rod is arranged at the output end of the hydraulic cylinder, and one end of the hydraulic telescopic rod, which is far away from the hydraulic cylinder, is fixedly connected with the lifting plate.

Further, rotary device includes the roating seat, the fixed bull stick that is equipped with in one side of roating seat, the bull stick is kept away from the one end of roating seat with theodolite fixed connection, the fixed second turbine that is equipped with on the bull stick, one side and the second worm of second turbine mesh mutually, the fixed twist grip that is equipped with in one end of second worm, the second worm is kept away from twist grip's one end is equipped with the bearing frame, bearing frame and support frame fixed connection, one side of twist grip is located be equipped with the bracing piece on the second worm.

Furthermore, the supporting rod and the supporting frame are fixedly connected with the placing plate, a first containing box is arranged on one side of the bottom of the placing plate, and the bottom of the first containing box is fixed to the bottom plate.

Furthermore, the lifter plate is kept away from one side of theodolite is equipped with the second containing box, the second containing box with connect the drilling rod phase-match.

Furthermore, the mechanism that opens and shuts includes the closing plate, the one end of closing plate through connect the hinge with the sample connection, one side of closing plate through the spring with the inside fixed connection of sample connection.

Furthermore, the first flanges are connected through a first threaded column, and first locking nuts are arranged on threads on two sides of the first threaded column.

Furthermore, a second threaded column is arranged between the first flange and the second flange, and second locking nuts are arranged on threads on two sides of the second threaded column.

Furthermore, one side of the bottom plate, which is far away from the lifting plate, is provided with a plurality of movable wheels.

Compared with the prior art, the invention has the following beneficial effects:

(1) the drilling sampling device is arranged, so that the geotechnical geology required to be detected can be subjected to exploration and drilling, meanwhile, one side of the first rotating shaft is provided with a drill bit and a plurality of connecting drill rods, so that the drill bit and the connecting drill rods can be conveniently drilled at different depths according to requirements, meanwhile, the connecting drill rod is provided with a collecting box, a rotating shaft, a first turbine, a first worm and a second spiral blade, thereby realizing sampling of rock and soil at different depths under the driving of a second motor, the device has simple structure, convenient operation and use, greatly increases the use convenience, can sample rock soil at different depths by one-time drilling, greatly increases the convenience, the clamping mechanism can prevent rock and soil at different depths from entering the collecting box during rising, so that the use safety is greatly improved, the sampling accuracy is improved, and the sampling and measuring accuracy is improved;

(2) when the connecting device can realize connection between the connecting drill rods, the rotating shafts inside the connecting drill rods can be connected in a clamping manner in pairs, and meanwhile, the second rotating shaft and the rotating shafts can be conveniently connected in a clamping manner, so that the rotating shafts can be simultaneously driven to rotate when the second motor rotates, sampling can be realized, the device is simple in structure and convenient to operate and use, the lifting device can realize lifting and descending of the connecting drill rods, and convenience in adjustment is increased;

(3) the rotating device is convenient for adjusting the magnetic field of the theodolite, the convenience of adjustment is improved, meanwhile, the supporting frame and the supporting rod can play a role in supporting the second worm, the first containing box is fixed on one side of the bottom plate and is convenient for containing the placing plate, the safety of placing is improved, and therefore the theodolite can be contained, the theodolite can be protected, the carrying convenience is greatly improved, the second containing box is convenient for storing the connecting drill rod, the carrying convenience is improved, and the depth of the drilling rod can be conveniently adjusted;

(4) the mechanism that opens and shuts conveniently opens and shuts to the sample connection, avoids the ground of the different degree of depth to get into the inside of collection box to can increase the accuracy of sample, great improvement the security of measurement.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a portable depth-adjustable measuring device for geotechnical geological exploration, according to an embodiment of the invention;

FIG. 2 is a schematic structural diagram of a connecting drill rod in the portable depth-adjustable measuring device for geotechnical geological exploration, according to the embodiment of the invention;

FIG. 3 is a cross-sectional view of a coupling drill rod in a portable measuring device with adjustable depth for geotechnical geological exploration, according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a drilling sampling device in a portable depth-adjustable measuring device for geotechnical geological exploration, according to an embodiment of the invention;

fig. 5 is a schematic structural diagram of a connecting device in a portable measuring device with adjustable depth for geotechnical geological exploration, according to an embodiment of the invention.

Reference numerals:

1. a base plate; 2. a through hole; 3. a first rotating shaft; 4. a drill bit; 5. connecting a drill rod; 6. a first flange; 7. a cavity; 8. a rotating shaft; 9. a first bearing sleeve; 10. a support plate; 11. a placement groove; 12. a collection box; 13. a sampling port; 14. a first worm; 15. a second helical blade; 16. a first turbine; 17. a fixing plate; 18. a groove; 19. a limiting rod; 20. a slider; 21. a slide rail; 22. a lifting plate; 23. a second bearing housing; 24. a first motor; 25. a first pulley; 26. a second pulley; 27. a belt; 28. a second rotating shaft; 29. a second motor; 30. a theodolite; 31. a first fixed block; 32. a second fixed block; 33. a clamping block; 34. a limiting groove; 35. a card slot; 36. a hydraulic cylinder; 37. a hydraulic telescopic rod; 38. a rotating base; 39. a second worm; 40. rotating the handle; 41. a support frame; 42. a support bar; 43. placing the plate; 44. a first storage box; 45. a second storage box; 46. a sealing plate; 47. connecting a hinge; 48. a spring; 49. a first threaded post; 50. a first lock nut; 51. a moving wheel; 52. a first helical blade.

Detailed Description

The invention is further described with reference to the following drawings and detailed description:

the first embodiment is as follows:

referring to fig. 1 to 5, the portable depth-adjustable measuring device for geotechnical and geological exploration according to the embodiment of the present invention includes a bottom plate 1, a through hole 2 is disposed in the middle of the bottom plate 1, a drilling and sampling device is disposed above the through hole 2, the drilling and sampling device includes a first rotating shaft 3, a drill bit 4 is disposed below the first rotating shaft 3, a plurality of connection drill rods 5 are disposed between the drill bit 4 and the first rotating shaft 3, first flanges 6 are disposed at both ends of the connection drill rods 5, the connection drill rods 5 are respectively connected to the drill bit 4 and the first rotating shaft 3 through second flanges, first spiral blades 52 are disposed on the connection drill rods 5, a cavity 7 is disposed inside the connection drill rods 5, a rotating shaft 8 is disposed inside the cavity 7, a first bearing sleeve 9 is sleeved in the middle of the rotating shaft 8, the first bearing sleeve 9 is connected to the inner wall of the cavity 7 through a support plate 10, the two sides of the connecting drill rod 5 are symmetrically provided with a plurality of placing grooves 11, a collecting box 12 is fixedly arranged in each placing groove 11, one end of each collecting box 12 is provided with a sampling port 13, each sampling port 13 is provided with an opening and closing mechanism, a first worm 14 is arranged in each collecting box 12, one end of each first worm 14 is fixedly provided with a second spiral blade 15, one end, far away from the second spiral blade 15, of each first worm 14 sequentially penetrates through the collecting boxes 12 and the placing grooves 11 and extends towards the inside of the cavity 7 to be meshed with a first turbine 16, the first turbine 16 is fixedly sleeved on the rotating shaft 8, one end, far away from the second spiral blades 15, of each first turbine 16 is provided with a limiting and supporting device, each limiting and supporting device comprises a fixing plate 17, a groove 18 is formed in the side edge of each fixing plate 17, and a limiting rod 19 is arranged in each groove 18, the limiting rod 19 is connected with the groove 18 in a sliding manner, one end, far away from the groove 18, of the limiting rod 19 is fixedly provided with a sliding block 20, one end, far away from the limiting rod 19, of the sliding block 20 is connected with a sliding rail 21 in a sliding manner, one end of the sliding rail 21 is fixedly connected with the inner wall of the cavity 7, one end, far away from the connecting drill rod 5, of the first rotating shaft 3 penetrates through a lifting plate 22, a second bearing sleeve 23 is arranged at the penetrating position of the first rotating shaft 3 and the lifting plate 22, one end of the first rotating shaft 3 is provided with a transmission device, the transmission device comprises a first motor 24, an output end of the first motor 24 is provided with a first belt pulley 25, one side of the first belt pulley 25 is provided with a second belt pulley 26, the first belt pulley 25 is connected with the second belt pulley 26 through a belt 27, and the middle of the first rotating shaft 3 is provided with a, the second rotating shaft 28 is connected with the rotating shaft 8 through a connecting device, the second rotating shaft 28 is far away from one end of the connecting device and is connected with the output end of a second motor 29, two sides of the lifting plate 22 are provided with lifting devices, one side of the lifting plate 22 is provided with a theodolite 30, a rotating device is arranged below the theodolite 30, investigation and drilling can be carried out on the geotechnical geology to be detected through being provided with a drilling sampling device, meanwhile, one side of the first rotating shaft 3 is provided with a drill bit 4 and a plurality of connecting drill rods 5, drilling with different depths can be conveniently carried out on the drilling drill rods as required, the collecting box 12, the rotating shaft 8, the first turbine 16, the first worm 14 and the second spiral blade 15 are arranged on the connecting drill rods 5, so that the sampling of the geotechnical with different depths can be realized under the driving of the second motor 29, the device, great increase the convenience of use, simultaneously can once drill the ground of the different degree of depth and take a sample, great increase convenient to during the ground of the different degree of depth gets into collection box 12 when block mechanism can avoid rising, great increase the security of use, increased the accuracy of sample, improved the accuracy of sample measurement.

Example two:

referring to fig. 2, 3 and 4, for the connection device, the connection device includes a first fixed block 31 and a second fixed block 32, the first fixed block 31 is fixed to one end of the second rotating shaft 28 and one end of the rotating shaft 8, the second fixed block 32 is fixed to the other end of the rotating shaft 8 far from the first fixed block 31, a plurality of clamping blocks 33 are fixed to an edge of the first fixed block 31, a limiting groove 34 is formed in one side of the second fixed block 32, the limiting groove 34 is matched with the first fixed block 31, a clamping groove 35 is formed in the second fixed block 32 at an edge of the limiting groove 34, the clamping blocks 33 are matched with the clamping groove 35, when the connection device is used for connecting the drill rods 5, the rotating shafts 8 connected to the inside of the drill rod 5 can be clamped and connected, and the second rotating shaft 28 and the rotating shaft 8 can be conveniently clamped and connected, therefore, the second motor 29 can drive the plurality of rotating shafts 8 to rotate simultaneously when rotating, so that sampling can be realized, and the device is simple in structure and convenient to operate and use; for the lifting device, the lifting device comprises a hydraulic cylinder 36, a hydraulic telescopic rod 37 is arranged at the output end of the hydraulic cylinder 36, one end, far away from the hydraulic cylinder 36, of the hydraulic telescopic rod 37 is fixedly connected with the lifting plate 22, the lifting device can drive the connecting drill rod 5 to lift and descend, and the convenience of adjustment is improved.

Example three:

referring to fig. 1, for the rotating device, the rotating device includes a rotating base 38, a rotating rod is fixedly disposed on one side of the rotating base 38, one end of the rotating rod, which is far away from the rotating base 38, is fixedly connected to the theodolite 30, a second worm gear is fixedly disposed on the rotating rod, one side of the second worm gear is engaged with a second worm 39, a rotating handle 40 is fixedly disposed on one end of the second worm 39, a bearing seat is disposed on one end of the second worm 39, which is far away from the rotating handle 40, the bearing seat is fixedly connected to a support frame 41, a support rod 42 is disposed on one side of the rotating handle 40, the rotating device facilitates adjustment of a magnetic field for the theodolite 30, convenience in adjustment is increased, and the support frame 41 and the support rod 42 can support the second worm 39; for the supporting rod 42, the supporting rod 42 and the supporting frame 41 are both fixedly connected with the placing plate 43, one side of the bottom of the placing plate 43 is provided with a first containing box 44, the bottom of the first containing box 44 is fixed on the bottom plate 1, and the first containing box 44 is fixed on one side of the bottom plate 1 to facilitate the containing of the placing plate 43, so that the placing safety is increased, the containing of the theodolite 30 is realized, the theodolite can be protected, and the carrying convenience is greatly increased; to lifter plate 22, lifter plate 22 keeps away from one side of theodolite 30 is equipped with second containing box 45, second containing box 45 with connect drilling rod 5 phase-match, second containing box 45 is convenient to the depositing of connecting drilling rod 5, has increased the convenience of carrying, conveniently can carry out the degree of depth to it when drilling.

Example four:

referring to fig. 2 and 4, for the opening and closing mechanism, the opening and closing mechanism includes a sealing plate 46, one end of the sealing plate 46 is connected with the sampling port 13 through a connecting hinge 47, one side of the sealing plate 46 is fixedly connected with the inside of the sampling port 13 through a spring 48, and the opening and closing mechanism is convenient for opening and closing the sampling port 13, so that rock soil at different depths is prevented from entering the inside of the collecting box 12, the sampling accuracy can be increased, and the measuring safety is greatly improved.

Example five:

referring to fig. 1 and 3, for a first flange 6, the first flange 6 is connected through a first threaded column 49, first locking nuts 50 are arranged on threads on two sides of the first threaded column 49, for the first flange 6, the first flange 6 and a second flange are connected through a second threaded column, and second locking nuts are arranged on threads on two sides of the second threaded column, so that the first flange is conveniently connected, and the first flange and the second flange are fixedly connected; for the bottom plate 1, a plurality of moving wheels 51 are arranged on one side, away from the lifting plate 22, of the bottom plate 1, and the moving wheels are convenient for moving the bottom plate 1, so that convenience is improved.

In summary, with the above technical solutions of the present invention, in order to facilitate understanding of the above technical solutions of the present invention, the following detailed description is made of the working principle or the operation manner of the present invention in the practical process:

in practical application, the theodolite 30 in the first storage box 44 is taken out and placed at the top of the first storage box 44, after the theodolite is placed, the rotating handle 40 is rotated, the rotating handle 40 drives the second worm 39 to rotate, so that the second worm can be driven to rotate, the theodolite 30 can be driven to rotate, the rotation adjustment of a magnetic field is realized, the use convenience is improved, the storage and the carrying are convenient, then the connecting drill rods are taken out from the second storage box 45, the connecting drill rods 5 are equidistant, the selection and the installation are carried out according to the requirements of workers during drilling, the first fixing block 31 and the fixture block 33 are firstly connected with the limiting groove 34 and the clamping groove 35 on the second fixing block 32 during installation, and then the first flange 6 and the second flange are connected through the first threaded column 49 and the first locking nut 50, and the second threaded column is connected with a second locking nut, thereby realizing the fixed installation process, after the installation, the first motor 24 is started, the start of the first motor 24 will drive the rotation of the first belt pulley 25, the first belt pulley 25 will drive the rotation of the second belt pulley 26 through the belt 27, the second belt pulley 26 will drive the rotation of the first rotating shaft 3, thereby realizing the rotation of the connecting drill rod 5, the rotation of the connecting drill rod 5 can drive the first spiral blade 52 to drill the ground, then the lifting device is started, the hydraulic cylinder 36 will drive the hydraulic telescopic rod 37 to contract, the contraction of the hydraulic telescopic rod 37 will drive the descending of the lifting plate 22, the descending of the first rotating shaft 3 and the connecting drill rod 5 can be realized, thereby realizing the drilling process, after a certain depth is drilled, when different depths are required to be sampled, the start of the first motor is stopped, then the second motor 29 is started, the second motor 29 will drive the second rotating shaft 28 to rotate, the second rotating shaft 28 will drive the rotating shaft 8 to rotate, and the two are connected by the connecting device, so as to realize synchronous rotation, the rotating shaft 8 will drive the first turbine 16 to rotate, the first turbine 16 will drive the first worm 14 to rotate, the limiting device can realize the rotating movement of the first worm 14 under the driving of the first turbine 16, the first worm 14 will drive the second spiral blade 15 to move and rotate, so as to realize the extension of the second spiral blade 15 from the inside of the collecting box 12, and meanwhile, the opening of the clamping device can be pushed in the extension process, so as to realize the sampling of the rock soil on the inner wall of the drill hole by the extension of the second spiral blade 15, the second spiral blade 15 will rotate the rock soil into the second spiral blade 15, and then the second motor 29 is rotated reversely, the second motor 29 drives the first worm wheel to rotate reversely, so that the first worm can be retracted, rock soil is brought into the collecting box 12, the sealing plate 46 can be pulled back under the tension of the spring 48 to seal the sampling port 13 in the sampling process, the rock soil with other depths is prevented from falling into the collecting box 12, the safety is greatly improved, the hydraulic cylinder 36 is started to lift the hydraulic telescopic rod 37 to be taken out from the drilled hole, the convenience is greatly improved, meanwhile, when one-side drilling can be realized in the drilling process, the depth is not enough, the first motor 24 is stopped to stop drilling, and then the drill rod 5 is added and installed therein, the device has a simple structure and is convenient to operate and use, the convenience in use is greatly improved, meanwhile, the rock soil with different depths can be sampled by one-time drilling, the convenience is greatly improved, and the ground of the different degree of depth enters into the collection box when block mechanism can avoid rising, great increase the security of use, increased the accuracy of sample, improve the accuracy of sample measurement.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a portable measuring device of degree of depth adjustable for geotechnical geology reconnaissance, its characterized in that includes bottom plate (1), the centre of bottom plate (1) is equipped with through-hole (2), through-hole (2) top is equipped with drilling sampling device.

2. The portable depth-adjustable measuring device for geotechnical geological survey according to claim 1, wherein the drilling and sampling device comprises a first rotating shaft (3), a drill bit (4) is arranged below the first rotating shaft (3), a plurality of connecting drill rods (5) are arranged between the drill bit (4) and the first rotating shaft (3), first flanges (6) are arranged at two ends of each connecting drill rod (5), the connecting drill rods (5) are respectively connected with the drill bit (4) and the first rotating shaft (3) through second flanges, first spiral blades (52) are arranged on the connecting drill rods (5), a cavity (7) is arranged inside the connecting drill rods (5), a rotating shaft (8) is arranged inside the cavity (7), a first bearing sleeve (9) is sleeved in the middle of the rotating shaft (8), and the first bearing sleeve (9) is connected with the inner wall of the cavity (7) through a support plate (10), the two sides of the connecting drill rod (5) are symmetrically provided with a plurality of placing grooves (11), a collecting box (12) is fixedly arranged in the placing grooves (11), one end of the collecting box (12) is provided with a sampling port (13), the sampling port (13) is provided with an opening and closing mechanism, a first worm (14) is arranged in the collecting box (12), one end of the first worm (14) is fixedly provided with a second spiral blade (15), one end, far away from the second spiral blade (15), of the first worm (14) penetrates through the collecting box (12) and the placing grooves (11) in sequence, the first worm extends towards the inside of the cavity (7) and is meshed with a first turbine (16), the first turbine (16) is fixedly sleeved with the rotating shaft (8), and one end, far away from the second spiral blade (15), of the first turbine (16) is provided with a limiting and supporting device, the limiting and supporting device comprises a fixing plate (17), a groove (18) is formed in the side edge of the fixing plate (17), a limiting rod (19) is arranged inside the groove (18), the limiting rod (19) is connected with the groove (18) in a sliding mode, a sliding block (20) is fixedly arranged at one end, away from the groove (18), of the limiting rod (19), the sliding block (20) is connected with one end, away from the limiting rod (19), of the sliding block (20) in a sliding mode through a sliding rail (21), one end of the sliding rail (21) is fixedly connected with the inner wall of the cavity (7), one end, away from the connecting drill rod (5), of the first rotating shaft (3) penetrates through a lifting plate (22), a second bearing sleeve (23) is arranged at the penetrating position of the first rotating shaft (3) and the lifting plate (22), a transmission device is arranged at one end of the first rotating shaft (3), and the transmission device comprises a first motor, the output of first motor (24) is equipped with first belt pulley (25), one side of first belt pulley (25) is equipped with second belt pulley (26), first belt pulley (25) with connect through belt (27) between second belt pulley (26), the centre of first pivot (3) is run through and is equipped with second pivot (28), second pivot (28) through connecting device with rotation axis (8) are connected, keep away from second pivot (28) connecting device's one end is connected with the output of second motor (29), the both sides of lifter plate (22) are equipped with elevating gear, one side of lifter plate (22) is equipped with theodolite (30), the below of theodolite (30) is equipped with rotary device.

3. The portable depth-adjustable measuring device for geotechnical geological investigation of claim 2, it is characterized in that the connecting device comprises a first fixed block (31) and a second fixed block (32), the first fixed block (31) is fixed with the second rotating shaft (28) and one end of the rotating shaft (8), the second fixed block (32) is fixed with the other end of the rotating shaft (8) far away from the first fixed block (31), a plurality of clamping blocks (33) are fixedly arranged at the edge of the first fixing block (31), one side of the second fixing block (32) is provided with a limiting groove (34), the limiting groove (34) is matched with the first fixing block (31), the edge of the limiting groove (34) is located on the second fixing block (32) and is provided with a clamping groove (35), and the clamping block (33) is matched with the clamping groove (35).

4. The portable depth-adjustable measuring device for geotechnical geological survey according to claim 3, characterized in that the lifting device comprises a hydraulic cylinder (36), the output end of the hydraulic cylinder (36) is provided with a hydraulic telescopic rod (37), and one end of the hydraulic telescopic rod (37) far away from the hydraulic cylinder (36) is fixedly connected with the lifting plate (22).

5. The portable measuring device of claim 4, characterized in that, rotary device includes roating seat (38), the fixed bull stick that is equipped with in one side of roating seat (38), the bull stick is kept away from the one end of roating seat (38) with theodolite (30) fixed connection, the fixed second turbine that is equipped with on the bull stick, one side and the second worm (39) of second turbine mesh mutually, the fixed twist grip (40) that is equipped with in one end of second worm (39), second worm (39) are kept away from the one end of twist grip (40) is equipped with the bearing frame, bearing frame and support frame (41) fixed connection, one side of twist grip (40) is located be equipped with bracing piece (42) on second worm (39).

6. The portable depth-adjustable measuring device for geotechnical geological investigation of claim 5, wherein the supporting rod (42) and the supporting frame (41) are both fixedly connected with a placing plate (43), one side of the bottom of the placing plate (43) is provided with a first containing box (44), and the bottom of the first containing box (44) is fixed on the bottom plate (1).